25424969471 has 16 divisors (see below), whose sum is σ = 28199124000. Its totient is φ = 22731024000.

The previous prime is 25424969443. The next prime is 25424969501. The reversal of 25424969471 is 17496942452.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25424969471 is a prime.

It is a super-3 number, since 3×25424969471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25424969071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88745 + ... + 242333.

It is an arithmetic number, because the mean of its divisors is an integer number (1762445250).

Almost surely, 2^25424969471 is an apocalyptic number.

25424969471 is a deficient number, since it is larger than the sum of its proper divisors (2774154529).

25424969471 is a wasteful number, since it uses less digits than its factorization.

25424969471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153850.

The product of its digits is 4354560, while the sum is 53.

The spelling of 25424969471 in words is "twenty-five billion, four hundred twenty-four million, nine hundred sixty-nine thousand, four hundred seventy-one".